666114570 has 256 divisors, whose sum is σ = 2090188800. Its totient is φ = 149160960.

The previous prime is 666114563. The next prime is 666114599. The reversal of 666114570 is 75411666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 3988627 + ... + 3988793.

It is an arithmetic number, because the mean of its divisors is an integer number (8164800).

Almost surely, 2^666114570 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666114570, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1045094400).

666114570 is an abundant number, since it is smaller than the sum of its proper divisors (1424074230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666114570 is a wasteful number, since it uses less digits than its factorization.

666114570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 666114570 is about 25809.1954543337. The cubic root of 666114570 is about 873.3392477052.

The spelling of 666114570 in words is "six hundred sixty-six million, one hundred fourteen thousand, five hundred seventy".